As a passer-by in the upscale Johannesburg suburb of Saxonwold observed, the South African police would never have raided the enormous, high-walled compound of the Gupta family if President Jacob Zuma were not on the brink of being removed. But early on Wednesday morning, the police did exactly that.
The Guptas, three Indian immigrant brothers who became extremely rich due to their close partnership with Mr Zuma, used to be untouchable. They were accused of "state capture" in the media but they were safe because of their alliance with Mr Zuma. He did very nicely out of the deal too.
All that's over now. One of the Gupta brothers was arrested in the raid, and the other two cannot be far behind. It was a signal to Mr Zuma that the gloves were coming off, and 15 hours later he was gone. He had clung desperately to the presidency since the African National Congress (ANC) voted him out as its leader in December, but on Wednesday evening he resigned "with immediate effect".
Gwynne Dyer is an independent journalist whose articles are published in 45 countries.
Technically, Mr Zuma still had a year left in his second term as president, but the ANC wanted him out now because he was blighting the party's chances of winning next year's election. Friendly hints and subtle pressures were not shifting him, so on Tuesday the ANC's newly elected National Executive Committee ordered him to resign from the state presidency.
Mr Zuma was still telling various media that he would refuse to quit until late afternoon on Wednesday, although it was clear that there was no way he could win. The state president is elected by parliament, not by a popular vote, and parliament can also remove him by a non-confidence vote. The ANC has a majority in parliament, and such a vote was already scheduled for the 22nd.
Why did he hang on so long if he was bound to lose in the end? Probably because he was hoping to negotiate some sort of amnesty deal in return for going quietly. But that's a hard thing to do in South Africa, as the government does not control the courts.
Until recently Mr Zuma's exit plan involved getting his ex-wife, Nkosazana Dlamini-Zuma, chosen to succeed him as ANC president. She would then protect him from the many corruption charges that awaited him after he left the state presidency, at least in theory. But the ANC elected Cyril Ramaphosa as its president instead.
After that, Mr Zuma's only hope, if he wants to stay in South Africa after leaving office -- which he clearly does -- was an amnesty deal. But if the ANC is to rebuild its credibility with the voters there must be no amnesty, and Mr Ramaphosa has said publicly that it is not on the cards. That is probably true.
In any case, it's over now. Mr Ramaphosa, a former trade union leader who became a very rich businessman, will probably take over the state presidency only briefly now, choosing some other ANC worthy to serve out the last year of Mr Zuma's term. He would prefer to be elected state president next year in his right. But in fact he will already be running the show behind the scenes, and much will be expected of him.
South Africa's economy has stagnated during Mr Zuma's nine-year reign, in large part because both foreigners and local people were reluctant to invest in a country whose government had become so corrupt. There needs to be a massive cleansing exercise within the ANC, and it needs to start now if the results are to be visible before the election.
Mr Zuma may stay to face the music -- or, more likely, he will move abroad and live in the US$25 million palace the Guptas reportedly bought for him in Dubai. (He has denied owning any property abroad.)
The ANC has fallen a long way from its glory days, but it is a legitimate and democratic political party that still commands the loyalty of many, perhaps most South Africans. Now Mr Zuma has finally quit, Mr Ramaphosa, a competent and by all accounts an honest man, can get started on rebuilding the party's reputation.
If he succeeds, the ANC could still win next year's election and another five years in power. Whether that is the best thing for South Africa, given the ANC has already been in power for a quarter-century, is another question.